Digital Camera User Manual

C2946M-D (6/08) 19
EXPOSURE SETTINGS
Select this option to configure the exposure settings for the C10CH Series camera. The default
EXPOSURE SETTINGS menu appears when AUTO EXPOSURE is set to NORMAL or BLC.
AUTO EXPOSURE
The automatic exposure feature automatically adjusts the electronic shutter and mechanical iris to set
the correct exposure. Default settings depend on the selected profile (refer to Table D on page 18.)
Select one of the following automatic exposure modes:
ESC: Select this mode for optimal brightness level by increasing the number of stored fields.
NORMAL: Select this mode to use the electronic shutter and mechanical iris to control exposure. As lighting conditions change, the camera
adjusts exposure based on input from the electronic shutter.
BLC: Select this mode for scenes that are strongly backlit. The camera corrects the image to bring out the detail of the subject, such
as a person entering a building through a door.
BLC + ESC: Select this mode to set the electronic shutter speed manually.
ECLIPSER
The eclipser feature adjusts a foreground image to compensate for a very bright background. With a
normal auto iris lens, when a bright backlight overcomes a dim foreground subject, the iris may not
compensate for the scene properly. As a result, details in the image are lost.
Use this feature in parking garages, parking lots, driveways, and other entrances with a variety of
bright light sources.
NOTE: You must disable ESC to use the eclipser feature.
ECLIPSER: Select ON or OFF to enable or disable the eclipser function. When set to ON, the THRESHOLD and LEVEL settings can be
changed. The default setting is OFF.
THRESHOLD: The threshold value identifies an adjustment for the foreground brightness. The range is 0 (zero) to 25.
LEVEL: The level value identifies an adjustment level for the lens to ignore the background. The range is 1 (light gray) to 8 (black).
The default setting is 4.
To activate this setting, complete the following steps:
1. Set AGC to OFF.
2. Set ESC to OFF.
3. Set BLC to OFF.
4. Set ECLIPSER to OFF.
5. Set the video output level to one of the following lens options:
• Video type lens: Set the response selector of the auto iris lens to AVERAGE. Set the video output level of the camera to 0.75 Vp-p by
adjusting the LEVEL VR of the auto iris len.
• DC type lens: Set the video output level of the camera to 0.75 Vp-p by adjusting the DC IRIS LEVEL.
6. If the object in the foreground is dark (unrecognizable) and the background is predominant, set ECLIPSER to ON, and then set LEVEL to 4 or 5.
7. Adjust the THRESHOLD until the object in the foreground can be seen.
-> ESC
-> OFF
-> -8
-> OFF
-> LOW
AUTO EXPOSURE
ECLIPSER
DC IRIS LEVEL
FLICKERLESS
AGC
BACK EXIT
EXPOSURE SET.
-> OFF
-> 17
-> 4
ECLIPSER
THRESHOLD
LEVEL
BACK EXIT
ECLIPSER